Nuclear power divides opinion, but it could face a safer future
The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA specifications.
Absorption of neutrons by thorium can generate the isotope uranium-233, which can then be made to undergo fission in a controlled nuclear chain reaction. The reaction cross-section for fission induced by thermal neutrons is greater for U-233 than for other uranium isotopes, and the reactions are less likely to produce hazardous radioactive waste.
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